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https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-many-tables.html
Since this overhead only applies to the initial table open operation, to “warm up” a table for later use, access it immediately after startup by issuing a statement such as SELECT 1 FROM tbl_name LIMIT 1. If you have configured non-persistent ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-innodb-transaction-management.html
Alternatively, for transactions that consist only of a single SELECT statement, turning on AUTOCOMMIT helps InnoDB to recognize read-only transactions and optimize them. To optimize InnoDB transaction processing, find the ideal balance between the ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-myisam-bulk-data-loading.html
For a MyISAM table, you can use concurrent inserts to add rows at the same time that SELECT statements are running, if there are no deleted rows in middle of the data file. These performance tips supplement the general guidelines for fast inserts ...
https://dev.mysql.com/doc/refman/8.0/en/optimizing-queries-myisam.html
Try to avoid complex SELECT queries on MyISAM tables that are updated frequently, to avoid problems with table locking that occur due to contention between readers and writers. Some general tips for speeding up queries on MyISAM tables: To help ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-list.html
The chief difference between the two types of partitioning is that, in list partitioning, each partition is defined and selected based on the membership of a column value in one of a set of value lists, rather than in one of a set of contiguous ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-management.html
You can delete all rows from one or more selected partitions using ALTER TABLE ... There are a number of ways using SQL statements to modify partitioned tables; it is possible to add, drop, redefine, merge, or split existing partitions using the ...
https://dev.mysql.com/doc/refman/8.0/en/partitioning-range.html
For example, when executing a query such as EXPLAIN SELECT COUNT(*) FROM employees WHERE separated BETWEEN '2000-01-01' AND '2000-12-31' GROUP BY store_id;, MySQL can quickly determine that only partition p2 needs to be scanned because the remaining ... A table that is partitioned by range is partitioned in such a way that each partition contains rows for which the partitioning expression value lies within a given ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-component-scheduler-tasks-table.html
For example, the audit_log server plugin utilizes the scheduler component to run a regular, recurring flush of its memory cache: mysql> select * from performance_schema.component_scheduler_tasks\G *************************** 1. The ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-connection-tables.html
When a client connects to the MySQL server, it does so under a particular user name and from a particular host. They differ in that, for grant tables, the host part of an account can be a pattern, whereas for Performance Schema tables, the host ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-consumer-filtering.html
To enable or disable a consumer, set its ENABLED value to YES or NO. If you disable a consumer, the server does not spend time maintaining destinations for that consumer. For example, if you do not care about historical event information, disable ...